public class Dem03 {
    public static void main(String[] args) {

        int i = 100;
        Integer integerObj = new Integer(i);
        Integer integerObj2 = Integer.valueOf(i);

        Integer integerObj3 = new Integer(200);
        int j = integerObj3.intValue();
        int k = integerObj3;

        System.out.println(integerObj);
        System.out.println(integerObj2);
        System.out.println(j);
        System.out.println(k);
    }
}
